Teams of scientists are hurriedly attempting to save ancient sites that could provide insights into how people moved across Mesoamerica—before they are lost forever.
Officials from the tribe worry about the economic impacts of closing the Navajo Generating Station, but water conservationists are pushing for the region to move on.
Historical sites across the globe are at risk due to rising sea levels, but without reliable data we can't even assess the full scope of the problem, let alone solve it.
But holding the agents accountable has proven especially difficult considering the accusers are often undocumented immigrants with limited legal rights.
A recent study demonstrates how billions of dollars in government subsidies funds much of the reckless fishing that takes place in international waters.
Alaska Airlines has become the first airline to renounce the use of plastic straws in an effort to raise awareness about the use of single-use plastics that pollute the world's oceans.